We had a lovely stay! Natthapol is a very welcoming and friendly host that will anwser all your questions and give nice recomendations of the local area. The swimming pool and gym are really fancy and they also have a student room on the 53th floor free for use.
It actually takes 10-15 minutes to walk to the closest BTS (since the apartment is located just in between 2 stops) but there are many local busses that takes you there for 8 bath.
Will definitely recommend this to everyone and I would like to come back! :)